Click to expand Tap to zoom APF Ammonium Sulfate 33-0-0 40lb Save Liquid error (snippets/product-badge line 32): Computation results in '-Infinity'% $18.95 1 2 3 4 5 6 7 8 9 10+ Quantity Quantity Add to cart 16,500 sq. ft. at one pound of Nitrogen per 1,000 sq. ft. This product also contains 11% Sulfur.